To find XMRV you need to culture for 45 day

By Lannie in the Lymelight"

Not one virus has ever been discovered through PRC,*

basically communicating the frustration - why would they think they could easily find a brand new retrovirus this way all of a sudden?

This is why the WPI performs a full 45 day culture on each sample.

Mikovits also points out that these exhaustive tests must be run as XMRV lifecycles are not known yet. It may show up under different testing scenarios, depending on the stage of lifecycle it’s in.

Another reason for disparity is related to cohorts.

Depending on the criteria used for CFS, the cohorts could include patients who do not in fact have CFS. Read more>>